package com.homelock.common.util;

import javax.servlet.http.HttpServletRequest;

public class IpUtils {
	 /**
     * 获取客户端IP
     * @param request
     * @return
     */
    public static String getIpAddr(HttpServletRequest request) 
    {
        String ip = request.getHeader("x-forwarded-for");
        
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        
        int lastIndex = ip.lastIndexOf(",");
        
        if(lastIndex!=-1){
            String[] ips = ip.split(",");
            ip = ips[0];
        }
        return ip;
    }
}
